Using event for communicating two object ?

Question

hi,
i have two kinds of object, an producer and a consummator, i want to make them communicating with event.
when the producer have information to send, it wrapped within an event an send it to the consummator, do you have some documentation how to do
that, or samples
thanks for your help

Answer 1

If you are using your own event types you ould use the listener pattern. make an interface class that defines the listener type:
public interface MyEventListener {
public void handleEvent(MyEventType evt);
then make the receiving class implement this inteface.
now make the send class have methods for adding listeners:
public class Sender {
public void addListener(MyEventListener l) {
//add to listener list
public void sendEvent(MyEvent evt) {
//loop thought listener list calling handleEvent(evt);
}